Viperidae

Viperidae is a family of venomous snakes known as vipers, including rattlesnakes, adders, and pit vipers. They are characterized by long, hinged fangs that fold back when not in use and deliver potent venom used for hunting and defense. Vipers are found worldwide in a wide range of habitats and are typically ambush predators that feed on small mammals, birds, and other vertebrates.